Gemstone



FIG. 1 is a side view of a first embodiment of a gemstone according to the present invention;

FIG. 2 is a top view of the gemstone of FIG. 1;

FIG. 3 is a side view of a second embodiment of the gemstone according to the present invention; and,

FIG. 4 is a bottom view of the gemstone of FIG. 3.

The broken lines are provide for illustrative purposes only and form no part of the claimed design. 

The ornamental design of a gemstone, as shown and described. 